Ulster
noun uk/ˈʌl.stər/ us/ˈʌl.stɚ/
阿尔斯特(爱尔兰的一个省,分属北爱尔兰和爱尔兰共和国)
a province of Ireland, part of which is now in Northern Ireland and part in the Republic of Ireland
阿尔斯特(对北爱尔兰的称呼)
a name for Northern Ireland, which is part of the UK